Door-closing device



J. 0. N ASLIN.

DOOR CLOSING DEVICE.

APPLICATION FILED MAR-22.1920.

Patented Nov. 2, 1920.

2 SHEETSSHEET I- [Mahler I J. O. NASLIN.

DOOR CLOSING DEVICE.

APPLIMTION FILED MAR. 22. I920.

Patented Nov. 2, 1920.

2 SHEETSSHEET 2.

' 45 bersireferto the same parts?" t ulil'iifii i .5%

'7, .1 i'iQHN oiiiinsmitorisnmrrrin, wzisiimqmon; a

T all-whom it may concern v Specification of Letters Patent; v- Patented N 1920,;

i ilkpplicatieii filed March 22,-

'B'e' ='it known that "1, JOHN O. f NASLIN, a

citizen of the United- States, residing at Seattle; in"the-countyof King and State of Washington, have invented a new and usefuh Doo'r closin' Device and I" dohereby declare that'theollowingi-is a' full and exact description thereof, reference-being had to the f'accom'panyingdrawilws, and to' the charactersof reference inar' ed' 'thereon.

' 39 'My ihvention'rlates to adoor1;closer,de scribed in'.my fornier lapplicat omfiled Noi has teenabandoned} whreby {iiicornhina ne1f, a's='to ahno'stentireiy' ohviate the com-" idonalefect 'ef 'spring stra-im When'the door is swung-o en; and;'by whih, :=without other checkingmeansmdoormay beaendered s 1f:-=- elos'ing' -w ithont ahyserioiis slamming," when dapted *cons'truetion' ofmy invention has been illustrated-hm the accompanying from the frontside of thedoor fFigi-li is a front view as seen from the sidefof-the door,"

with spring G removedgFig. *4 is another"; top view of the device, showin by dotted" 40 lines theposition of thekcou nter alanceand 5 'the spring when'the door is *swun' open way 5 his hiiige Fa. V

--Inthese figures the ame lettersaiidnnrnf .iTh door closer consists prlncipaliy of a spring-carrying triangular shaped: counterbalancegiwith an eXtensiomJhinge Fa; eink braced between'thei'characters'A, B, and C,

' 'with rba-lance-arm "D,"and "a door closing spring G, and is ivoted to"brac'ketH'at A,

and'at C' to arm' which is in turn pivoted to the .side or -head piece of the door jamb,

as in sn hi n r a to heep the counter-bat 1920. Seria1NoL' 36 734di}.

allce just'described, when the last named is properly fastened ,to the door, in asuitahle position, when the door opens and closes "'f The construction of these mentioned parts may be "aried"with0ut in th emain varying 6Q the principles involved, I but must, however, i be such "as to render the door self-closing in an easy go'ing' 'manner, when connecte'd thereto r'vith "spring G, as"indicated* on the in s -1 tm Theportionindicated by F between points A. and B is curved/and considerablywider than the other sides of the tioiihtr-balance, and 'for that reason is'held upon pivoflA to the door'in a inoresati's'factory manner, than if narrower width, and also forms a suitable 'abl'itl'tflent for spring G, and means for itsjattachinenfiiii one or answerer hols 'l' ent re-e thereiiiEFbesideS meafis' or attachq ment at? point B b "which said sprin'g' 136 7a sqm'fekcentymay be adjusted], and regiiiated as to tensior'i-effect with respect toj-the*= clo ing movenient o'fth door, accordingffio' the size and diinens'ion thereof; and at the; same time it is' held in a'suitable position 'so *SQ as to clear the other partsof thejdoor, "when :1 the latter opens and closes. Its otherend may he fa stened onto the doorhyfthe siniple ci'istomary hook-and-eye-niannenat K,"-s'o as to give it the proper tension for the'auto matic closing-of the'doori f F The extension hinge Fa, which "forms a matched part of the spring-carrying extremity 'F,to which'itis hinged, an'd 'also pivoted to bracket 1at "A, serves thepu'r pose to extend the'sweep of thefeounterf bai'an'ceg -so asto allow the door'fres'wing, when'it is opened wa-y hack to thewall to which it is hinged and thereby,'?when the door is swung open 'in that-manner, the* spring-tension becomes more eifective' iipon hinged'portion Fais expanded. As 1t will'be seen froiir'the'foregoing, the essential features ofthe device c'onsist'ji'l'r its no adaptationin'minirnizing'the strain of'the" spring,.'which is carried by and with' the door in opening, and'at thesame timehecomes more "efie'ctive when the latter swung wide open, and when it reaches a '105 closed position', as indicated 'in Figs. l and 4, where'the door is shown as swung'from a closed to an open'position' Thus the distance from A to B remains the samewhenthe' dooris opened as whenfit 119 is closed; but when the sp'ririgis attached directly to the jamb, the distance from such a point of attaehment to 'poi'nt On -the door, will be considerably greater when the door is swung to an open position, than when it is closed, and, consequently, the springstraiii'lwill also be greater, than when the spring is carried along withthe door, when it is swung open.

This figure,,embrace d bycharacters A, B l1 1dG, Ii'la,y b6 constructed difierentlylvfrom that whichI l aveindicated in the drawings, either in one piece, or in separatepieces.

a'nd then suitably combined, but itlis essentiafl, thgit,-the sides, or rather, the distances.

suited for the purpose for which .-in-,',

tended-5 and it. should-be attached; onto the door nearntoits hingededge. t siam swa;

eac aam z e.. e ex i y: movable. pang, 120,;6 wing W\h -%i .r.l? l5 pri s-=1 ex r. .itr exterdina ner isaids r te a ailment- X39 t b z: (fier e-earlie Pl hiQW bfl, I -PPQY d dith; waimeensai r r d m g.;a dp t elin es @2 1: m ns snisi na ame-me s. zth h n ediede said;- part when swinging,-. and means for irt ee 4 c maintaining said balance'inisuitableposition ing said balance; in; suitable. position with respect to siid partsg and.- a springconnect ingw said, spring-carrying .extremity with -said l inged part so as to render; said'part selfieclpsingr-f 32 11 a; door 'closcr a spring-carryingcounter-balance,- haying a pivoted extremityconnectedto and-reciprocally movable with a hinged part, a'spring c'arryingextremity extending outwardly from said ipivoted extremity to a point suitable -forz=spri ng-con-- nection, a spring ceirnected thereto-so as to rendersaid part selifisclosinggfand means for A guiding said spring clear of;- the hinged-edge 6 of said part-whenswinging', abalance-arm extremity extending ion-ward iron); said pivoted and spring-carrying extremities .to a point suitable for balanee armconnection, v and a; balance-arm I oppositely-=- cfonnectingi: said balance-armextremity to a stationary in a debi -closer,- a spring-carrying counterbalance pivoted to a hinged swingi'ng' 'p'ar'tnear its hinged edge to reciprocall swing therewith, a forward-pointing extremity adapted for balance-arm coiini-ic tion and means connecting said extremity to a stationary part, for suitably maintaining said balance against the spring-tensionae fl mating: said swinging part, a spring-carrying extremity extending outwardly to-- a point suitable for spring-c0nneetion, spring; IHWUIS'CGHIIQCtGd thereto so as to render swinging part; self-closing, end, means for; so guiding said! spring-means;eleairpfi the edge of,siuighswingingpart, a P In; a door closer, asp ring-carrying; wh ance-hayi g:;;azi=h nged po ti -i er pix-'0 ted ,to "a swinging. pant-pear its; hinged g whf rebyi e ;swe p1 i: i ba a e may,

be:exp nd fieasltQi atil te eaf eopmieev ing; at sai p tym dtazsnrmgr arramad cas reni-ity mat h siiwndijointedit r aid 2r; 9 a a aso as e-iointlir-m s'ther with'end seem' llr saingia 'i re d n w a b tt rs-i: nmize tremityn andrmeans-f anne tintet aiidi; extremity and-a stationary-renew dwba ancep gai n st;t ierspri gn ensie lflwfi a" azsaidi swinai a We d: a. arina n ect ng seidu n inw ry nesee mmity andi saidswinging? part, whereby; said part} is I'GlldQICd-Sl-fi-CIOSlIIQ-g; 6. In adoor clo se r,- a spring-carrying CO!Hlt-bfilf3MCQ-;h3i7ll1ga a fonward pointing balance-arm extremity ,e'xtendingfroniasprigref-carrying anda-piwoted, extremity, m. li l-ex t r1 mi ties-, jand a balanceiearmqonnectr in said halan ce arm extrexizitytma: station-1 ary part, j for ;maintaining; said,: ba1apggg-.105 against theg springf tension actuating, a. swinging part, a spring-,conneetihg said spring-carrying extremity=and said[swi,nging' part, whiclnisthereby renderedsel-f ol si-mg, a.

i 45 arm ogtremity to.a.'s tati onary part, forrhold-dsand a hinged;portion;connecting saidspring z caprying: extremitygand, saidswmgmg' part," whereby-the tree opening,swingv of said; i I l na? d or; closer, in springrcarryiniz a cQunter-balancmahaving: a, spning-earrying eXfirQIIiit/y matched andhinged; to -1i ourvfed portion-:pivoted to au'swingingi; pa'rti'; adapted to reciprocally swing thlewjflif d meditate-the! ireeopeningiswingwhereof. a forward pointing balancd anm-mxtreme ity adapted. for: -:balance-a-rm-,- comieotilzifi, means connecting saidbalance-arm, extremeityto astationary=part for maintaining said l1aIancQ;agai i1stthe spring-tension actuating saidj swinging part,- spning means 'dorinet'a 11 said} sprungfcarrying extremity to said-- swinging part, for rendering said part self, clos ng;- and the said portion and 'mea'nsa cohnFflQ i llg it to;thesaidswingingeparti;

JOHN O. N ASLIN. 

